cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A000047 Number of integers <= 2^n of form x^2 - 2y^2.

Table of values

n a(n)
0 1
1 2
2 3
3 5
4 8
5 15
6 26
7 48
8 87
9 161
10 299
11 563
12 1066
13 2030
14 3885
15 7464
16 14384
17 27779
18 53782
19 104359
20 202838
21 394860
22 769777
23 1502603
24 2936519
25 5744932
26 11249805
27 22048769
28 43248623
29 84894767
30 166758141
31 327770275
32 644627310
33 1268491353
34 2497412741

List of values

[1, 2, 3, 5, 8, 15, 26, 48, 87, 161, 299, 563, 1066, 2030, 3885, 7464, 14384, 27779, 53782, 104359, 202838, 394860, 769777, 1502603, 2936519, 5744932, 11249805, 22048769, 43248623, 84894767, 166758141, 327770275, 644627310, 1268491353, 2497412741]